Answer / peterhann

No difference. Class X is the old BS naming and Class PX the IEC name.

Answer / k.prakashchandra

The performance of 'X-class' Ct is defined by Vkp,
magnetizing current at Vkp and resistance of secondary.It is
used in balanced protection system which is sensitively
dependent on CT accuracy.Vkp is an important parameter for
PX class CT and it is used for earth fault protection.

In Siemens S7-300 PLC, what is funtion and funtion block ? What is the difference between them ? When to use function and when to use function block

2 Answers  

---

Star & delta kis principale pa hai.

3 Answers   ME,

---

HOW TO CALCULATE ELECTRICAL, MECHANICAL,& OVERALL EFICIENCY OF GAS ENGINE POWER PLANT

0 Answers  

---

which phase is preferred for connecting 1 phase vt used for synchronizing OHL? WHY?

0 Answers   Siemens,

---

In a simple spur gear train, gears with 24, 48, 32, 72 and 96 teeth are in sequence. The gear with 24 teeth runs at 900 rpm. The speed in rpm of gear with 72 teeth is

1 Answers   Caterpillar,

---

---

How to calculate VCB rating for 33KV ,25 MW Power line?

0 Answers  

---

WHAT IS DC COMPONENT IN CIRCUIT BREAKER?

10 Answers  

---

what is eddy current loss?

3 Answers  

---

Which of the following can be operated at higher frequencies ? -SCR -MOSFET -IGBT

4 Answers  

---

What does VVVF stands for in VVVF drive ? How does it differ from VVF drive?

8 Answers   HAL,

---

we touch other end of the tester supply, why do not get shock?

7 Answers   L&T,

---

What sort of protection scheme do you suggest for the protection of a 10 HP motor?

1 Answers   Chevron,

---